Trailer Tire Recommendation to Replace 30.9.50-15 Tires

Updated 08/10/2017 | Published 08/09/2017

Products Featured in This Question

Provider ST205/75R15 Radial Trailer Tire - Load Range D

(1099)

$138.29

Provider ST225/75R15 Radial Trailer Tire - Load Range E

(1099)

$185.17

Question:

30X9.50rx15. this is the size of tire thats on the trailer now which tire would be good for long range trips? also carrying heavy weight ex, cars ling range?

asked by: Brian

Expert Reply:

The closest trailer tire size to a 30x9.50-15 is going to be an ST225/75-15 which will have a diameter of 28.4 inches and section width of 8.9 inches. In this size Provider ST225/75R15 Radial Trailer Tire - Load Range E Item # TR225LRE is a great option. Radial tires run cooler and track better compared to bias ply tires. This one is rated for 2,830 pounds at 80 psi.

Multiply the capacity by the number of tires on the trailer to get the total capacity the tires can handle. But keep in mind that you are still limited to the lowest rated component in the system. So, for example, if 2 tires are rated for 5,660 pounds total but the leaf springs are rated for 5,500 pounds total you would be limited to 5,500 pounds.

expert reply by: Michael H